Hook



FIG. 1 is a perspective view showing the new design for a hook;

FIG. 2 is a right side view thereof, the left side being a mirror image thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a perspective view of a second embodiment of the hook showing the new design. 

CLAIM The ornamental design for a hook, as shown and described. 